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Goodwill and Other Intangible Assets - Intangible Assets (Details) - USD ($) $ in Thousands | 9 Months Ended |
--- | --- | ---
Sep. 30, 2019 | Dec. 31, 2018
Schedule of Finite and Indefinite-Lived Intangible Assets [Line Items] |  |
Accumulated Amortization | $ (171,686) | $ (155,659)
Net Carrying Amount | 170,407 |
Gross carrying amount | 387,293 | 388,019
Total acquired intangible assets | 215,607 | 232,360
Trade names |  |
Schedule of Finite and Indefinite-Lived Intangible Assets [Line Items] |  |
Trade names (Indefinite lived) | $ 45,200 | 45,200
Facility management contracts |  |
Schedule of Finite and Indefinite-Lived Intangible Assets [Line Items] |  |
Weighted Average Useful Life | 16 years 3 months 18 days |
Gross Carrying Amount | $ 308,393 | 308,419
Accumulated Amortization | (142,998) | (127,481)
Net Carrying Amount | $ 165,395 | 180,938
Technology |  |
Schedule of Finite and Indefinite-Lived Intangible Assets [Line Items] |  |
Weighted Average Useful Life | 7 years 3 months 18 days |
Gross Carrying Amount | $ 33,700 | 33,700
Accumulated Amortization | (28,688) | (27,478)
Net Carrying Amount | $ 5,012 | $ 6,222

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- Definition Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275 + Details
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